2026 Trek Bikes Checkpoint Gen 3 Carbon
- Category
- Progressive Gravel
- Design
- Drop Bar, Rigid, suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
ML | XS | S | M | ML | L | XL | |
Stack | 60.1mm | 535mm | 556mm | 579mm | 601mm | 620mm | 640mm |
Reach | 39.7mm | 380mm | 386mm | 391mm | 397mm | 402mm | 408mm |
Stack to Reach Ratio | 1.51:1 | 1.41:1 | 1.44:1 | 1.48:1 | 1.51:1 | 1.54:1 | 1.57:1 |
Seat Tube Length, C-T | 53mm | 445mm | 480mm | 505mm | 530mm | 550mm | 575mm |
Seat Tube Length, Effective Unknown | — | 72.7mm | 73mm | 72.8mm | 72.8mm | 72.8mm | 72.8mm |
Top Tube Length, Effective/Horizontal Center | — | 536mm | 547mm | 566mm | 578mm | 589mm | 601mm |
Top Tube Length, Effective/Horizontal Unknown | 57.8mm | — | — | — | — | — | — |
Top Tube Slope | 9.7deg | 12deg | 10.3deg | 10.1deg | 9.7deg | 9.5deg | 8.9deg |
Head Tube Angle | 72deg | 71deg | 71.4deg | 71.6deg | 72deg | 72.1deg | 72.4deg |
Seat Tube Angle | 73.3deg | 74deg | 74deg | 73.3deg | 73.3deg | 73.3deg | 73.3deg |
Head Tube Length | 15.1mm | 86mm | 106mm | 130mm | 151mm | 171mm | 191mm |
Bottom Bracket Drop | 7.6mm | 76mm | 76mm | 76mm | 76mm | 76mm | 76mm |
Bottom Bracket Height | 341.4mm | 277mm | 277mm | 277mm | 277mm | 277mm | 277mm |
Chainstay Length | 43mm | 430mm | 430mm | 430mm | 430mm | 430mm | 430mm |
Chainstay Length Horizontal | 42.3mm | 423.2mm | 423.2mm | 423.2mm | 423.2mm | 423.2mm | 423.2mm |
Front-Center | 62.3mm | 594.7mm | 603.6mm | 615.5mm | 623.4mm | 633.4mm | 643.3mm |
Front-Center Horizontal | 61.9mm | 589.8mm | 598.8mm | 610.8mm | 618.8mm | 628.8mm | 638.8mm |
Wheelbase | 104.2mm | 1013mm | 1022mm | 1034mm | 1042mm | 1052mm | 1062mm |
Fork Offset/Rake | 4.9mm | 49mm | 49mm | 49mm | 49mm | 49mm | 49mm |
Trail | 108.2mm very high | 69.7mm high | 67.1mm high | 65.8mm high | 63.2mm mid/​neutral | 62.5mm mid/​neutral | 60.6mm mid/​neutral |
Mechanical Trail | 103mm | 65.9mm | 63.6mm | 62.4mm | 60.1mm | 59.5mm | 57.7mm |
Wheel Flop | 31.8mm | 21.5mm | 20.3mm | 19.7mm | 18.6mm | 18.3mm | 17.5mm |
Standover Height | 81.3mm | 746mm | 772mm | 799mm | 813mm | 837mm | 861mm |
Tire to Pedal Spindle | -459.2mm 172.5 mm cranks | 76.7mm 165 mm cranks | 85.6mm 165 mm cranks | 92.5mm 170 mm cranks | 97.9mm 172.5 mm cranks | 107.9mm 172.5 mm cranks | 115.3mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 168.9mm 172.5 mm cranks | 112mm 165 mm cranks | 112mm 165 mm cranks | 107mm 170 mm cranks | 104.5mm 172.5 mm cranks | 104.5mm 172.5 mm cranks | 102mm 175 mm cranks |
Carbon Build
ML | XS | S | M | ML | L | XL | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 38mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm |
Tire Width Max | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm |
Tire Outer Diameter | 698mm | 706mm | 706mm | 706mm | 706mm | 706mm | 706mm |
Bike Length with Tires | 802.2mm | 1719mm | 1728mm | 1740mm | 1748mm | 1758mm | 1768mm |
Crank Length | 172.5mm | 165mm | 165mm | 170mm | 172.5mm | 172.5mm | 175mm |
Handlebar Width | 42cm | 40cm | 40cm | 42cm | 42cm | 44cm | 46cm |
Stem Length | 90mm | 70mm | 80mm | 80mm | 90mm | 90mm | 100mm |
Stem Angle | 7deg | 7deg | 7deg | 7deg | 7deg | 7deg | 7deg |
Published Sizing Recommendations
Height | 70 cm to 74 cm | 143 cm to 158 cm | 158 cm to 164 cm | 164 cm to 177 cm | 177 cm to 188 cm | 188 cm to 194 cm | 194 cm to 203 cm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Progressive GravelSource:www.trekbikes.com